That would be a strange sentence for the right now meaning. You would have to stress that explicitly and likely you would speak about some actual object you are measuring.
That is like saying The Moon orbits around the Earth.. You also do not say The Moon is orbiting around the Earth.. It is a general statement.
Actually both phrases express kinda the same reality. I can say:
- The moon is orbiting the Earth (now), but it will stop doing it after some thousand million years.
- The moon orbits around the Earth, but it will stop doing it after some thousand million years.
I change the verb only according to different contexts, but both are representing the fact that the Earth is orbiting/orbits around the Earth. the only difference is that I take the second one as a kind of "universal" sentence. But just context can tell me that in English.
The same with our case and the verb to "measure".
Unless there's another way to differenciate this in Czech. Does it exist?